418 98. GKAMINE^. 



or with a very minute mucro. Nut oblong, convex on back, 

 not furrowed within, free. 



38. Bkiza. G1. nearly equal, broad, 3-ribbed. Fl. 3—8, 

 densely imbricate in a short distichous spikelet. Lower 

 pale boatshaped, heartshaped, blunt, rounded on the back. 

 Gl. and pales membranous with a scarious margin. Nut 

 free. — Lower pale with 7 — 9 faint veins. 



m Lower pale truncate and denticulate at the tip. 



39. Catabeosa. G1. unequal, very short, 1-veined. Flowers 

 usually 2, rounded on the back, distant. Lower pale mem- 

 branous, with 3 veins ending in teeth which do not quite 

 extend to the edge of the scarious margin. Upper gl. often 

 with 2 short and faint lateral veins. 



tt Lower pah with oonvergiug veins, all or 1 — 3 of which com- 

 bine in the awn. 



40. Gtnosttiius. Gl. nearly equal, scarious, strongly keeled, 

 1- or more flowered. Lower pale rounded on the back with 

 a terminal bristle. Each spikelet with a cotnh-liJce bract at 

 its base. Panicle spikelike, 1-sided. Nut closely coated 

 with the pales. 



41. Dacttlis. Gl. unequal, herbaceous, many-flowered; 

 lower keeled. Lower pale compressed, keeled, 5-veined; 

 dorsal vein fringed and exourrent just below the tip as a 

 short awn. Spihelets crowded, subsecund. Nut free. 



42. Fbsttjca. Gl. imequal, herbaceous, many-flowered. 

 Lower pale rounded on the back, very acute, or with the 

 dorsal vein excurrent at or just below the tip as a short awn ; 

 lateral veins slighth) convei-gim/ and vanishing below the tip. ' 

 Upper pale minutely oiliate on the ribs. Styles terminal. 

 Nut furrowed, adhering to the pales. — Rachis with acute 

 angles. Sheaths of the leaves divided to the base. 



43. Bhomtjs. Gl. unequal, herbaceous, manv-flowered; fojcer 

 \-veined, upper 3 — o-veined. Fl. lanceolate, compressed. 

 Lower pale with a long awn, (usually) founded on 3 veins, 

 from below the tip. Styles below the top of the cmary. Nut 

 furrowed, adhering to the pales.' — ^Sheaths of the 1. divided 

 halfway down. 



44. Sebrapalctts. Gl. unequal, herbaceous, many-flowered, 

 lower 8 — ^-veined, upper 7 — Q-veined. PI. oblong, turgid. 

 Lower pale with a short awn, (usually) founded on 3 veins, 

 from below the tip. Styles below the top of the ovary. Nut 



